Or don’t. Jeremy Kay, reviewing it in The Guardian, called it “meticulous, methodical and educated – but also extreme, and extremely pretentious.” So if you’re the kind of person who fears being thought pretentious by The Guardian’s reviewer, it might be safer to give it a miss. But I think you should risk it.

Sometimes a movie can work without needing to satisfy a focus group’s (or a critic’s) idea of how much it should explain. In the ticketing system we use to track projects at work, there’s a set of choices we use when resolving a ticket. Sometimes (most of the time) the resolution is “fixed”. Sometimes, though, it’s “wontfix”, or ”worksforme”. Those categories are important to have.

So are movies like Upstream Color. Its resolution may not be completely satisfying for some viewers. But it doesn’t need fixing. And boy, did it work for me.